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  <section id="findhg">
<span id="module:FindHg"></span><h1>FindHg<a class="headerlink" href="#findhg" title="Permalink to this heading">¶</a></h1>
<p>Extract information from a mercurial working copy.</p>
<p>The module defines the following variables:</p>
<div class="highlight-none notranslate"><div class="highlight"><pre><span></span>HG_EXECUTABLE - path to mercurial command line client (hg)
HG_FOUND - true if the command line client was found
HG_VERSION_STRING - the version of mercurial found
</pre></div>
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<div class="versionadded">
<p><span class="versionmodified added">New in version 3.1: </span>If the command line client executable is found the following macro is defined:</p>
</div>
<div class="highlight-none notranslate"><div class="highlight"><pre><span></span>HG_WC_INFO(&lt;dir&gt; &lt;var-prefix&gt;)
</pre></div>
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<p>Hg_WC_INFO extracts information of a mercurial working copy
at a given location.  This macro defines the following variables:</p>
<div class="highlight-none notranslate"><div class="highlight"><pre><span></span>&lt;var-prefix&gt;_WC_CHANGESET - current changeset
&lt;var-prefix&gt;_WC_REVISION - current revision
</pre></div>
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<p>Example usage:</p>
<div class="highlight-none notranslate"><div class="highlight"><pre><span></span>find_package(Hg)
if(HG_FOUND)
  message(&quot;hg found: ${HG_EXECUTABLE}&quot;)
  HG_WC_INFO(${PROJECT_SOURCE_DIR} Project)
  message(&quot;Current revision is ${Project_WC_REVISION}&quot;)
  message(&quot;Current changeset is ${Project_WC_CHANGESET}&quot;)
endif()
</pre></div>
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